The Roman Ogee Bit, which has a convex curve coming off the bearing, produces the reverse of the Ogee (it isn't an upside-down Ogee). the curve starts at the top as a concave, and fairs down into a convex curve. Use in a handheld or table-mounted router., #49200 diameter (D) 1, radius (r) 5/32, cutting Height (B) 5/8, shank (D) 1/4, overall length (L) 2-1/8, replacement bearing 47704, flutes 2, 49200 carbide Tipped Roman Ogee 5/32 radius x 1 inch dia X 5/8 x 1/4 shank